CN103534900A - Permanent magnet type electric rotating machine and manufacturing method thereof - Google Patents
Permanent magnet type electric rotating machine and manufacturing method thereof Download PDFInfo
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- CN103534900A CN103534900A CN201180070820.2A CN201180070820A CN103534900A CN 103534900 A CN103534900 A CN 103534900A CN 201180070820 A CN201180070820 A CN 201180070820A CN 103534900 A CN103534900 A CN 103534900A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
- H02K1/2783—Surface mounted magnets; Inset magnets with magnets arranged in Halbach arrays
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A permanent magnet type electric rotating machine for which a Halbach array is utilized as a magnetic pole composition for the rotor (1), main magnets (3) that magnetize in the radial direction are composed of rare-earth magnets, auxiliary magnets (4) that magnetize in the circumferential direction are composed of ferrite magnets, and gaps are created between the main magnets and the auxiliary magnets in order to reduce the quantity of the rare-earth magnets without reducing the output torque of the electric rotating machine.
Description
Technical field
The present invention relates to use permanet magnet type rotary electric machine and the manufacture method thereof of permanent magnet.
Background technology
In using the electric rotating machine of permanent magnet, in order to make electric rotating machine miniaturization, high output, high efficiency, the magnet of rotor is used that to take neodymium be the rare earth element magnet with strong magnetic force that sintered magnet is representative.
In addition, patent documentation 1 discloses the example that epitrochanterian magnet is carried out to the electric rotating machine of Haier Bake (Halbach) configuration in order to increase the magnetic flux that flows to stator.The disclosed electric rotating machine of this patent documentation 1 forms epitrochanterian magnetic pole by main magnet, auxiliary magnet, form alternately configure the direction of magnetization for main magnet radially and the direction of magnetization be the structure of circumferential auxiliary magnet, in order to increase magnetic flux, make the circumferential width Ws of face on fixedly side of auxiliary magnet and the relation of the radial thickness t of this auxiliary magnet become 0 < Ws < 1.5t.
In addition, in patent documentation 2, also disclose the electric rotating machine of the rotor with the configuration of Haier Bake, here, disclose by making the radial dimension of auxiliary magnet shorter than main magnet, thereby without the fine finishining of rotor and improve the example of assembleability.
Look-ahead technique document
Patent documentation
Patent documentation 1: TOHKEMY 2007-14110 communique
Patent documentation 2: TOHKEMY 2005-45984 communique
Summary of the invention
The summary of invention
The problem that invention will solve
By rotor, using neodymium is sintered magnet, can seek miniaturization, high output, the high efficiency of electric rotating machine.In addition, for using magnetic force effectively, adopting is the structure that sintered magnet carries out Haier's Bake configuration to neodymium, at used representational neodymium, is in sintered magnet, and containing neodymium is that 27～28wt%, dysprosium are 1～5wt%.Due to these terres rares raw materials on earth reserves, production area be all limited, so cost is high, output has the limit, it is unstable that quantity delivered becomes.Therefore, be used in carry out mass-produced electric rotating machine in the situation that, having the problems such as the cost of electric rotating machine improves, and output is limited.
In addition, in the rotor of Haier such, in the past Bake configuration as one, in Patent Document 2, for according to design and assembly magnet, need to manage accurately the finishing size of magnet shape.
Fine finishining is cut processing and is carried out by grinding, and in order to carry out accurately fine finishining, has the problems such as process time is elongated.In addition, need to carry out strict management to the antirust and necessary surface-treated thickness for magnet, exist and make the upper such problem of spended time.
In addition, neodymium is that sintered magnet easily breaks, and when assembling the magnet of making according to design size, because magnet contacts with each other, existence generation is broken, damaged such problem.
The present invention proposes for the problem solving as described above, its object is, a kind of output torque that does not reduce electric rotating machine is provided, can reduce the operating weight of main magnet, can reduce high price and aspect allotment property in-problem neodymium be permanet magnet type rotary electric machine and the manufacture method thereof of the use amount of sintered magnet.
Its object is also, be provided a kind of process time that can shorten magnet, and the assembling of rotor also becomes easily, can also shorten built-up time, and can reduce when assembling magnet break, damaged permanet magnet type rotary electric machine and manufacture method thereof.
In order to solve the means of problem
Permanet magnet type rotary electric machine of the present invention possesses the rotor that is configured in the outer peripheral face of rotor core by stator unshakable in one's determination and that coiling forms and the magnet that forms a plurality of magnetic poles, wherein, the magnetic pole of above-mentioned rotor consists of the main magnet of diametrical magnetization and the auxiliary magnet of circumferential magnetization, and is provided with gap between above-mentioned main magnet and above-mentioned auxiliary magnet.
In addition, above-mentioned main magnet consists of rare-earth sintered magnet, and above-mentioned auxiliary magnet consists of ferrite magnet.
In addition, the manufacture method of permanet magnet type rotary electric machine of the present invention is the main magnet of diametrical magnetization and the auxiliary magnet of circumferential magnetization, to consist of the magnetic pole of rotor, and the manufacture method of the permanet magnet type rotary electric machine in gap is set between above-mentioned main magnet and above-mentioned auxiliary magnet, wherein, comprise following operation: above-mentioned main magnet is installed on rotor core, and to after the magnetization of this main magnet, the auxiliary magnet having magnetized is installed to above-mentioned rotor core.
The effect of invention
According to the present invention, can obtain a kind of output torque that does not reduce electric rotating machine, can reduce the operating weight of main magnet, can reduce high price and aspect allotment property in-problem neodymium be permanet magnet type rotary electric machine and the manufacture method thereof of the use amount of sintered magnet.
In addition, according to the present invention, owing to can increasing the dimensional tolerance of the magnet of use, so can obtain the process time that can shorten magnet, it is easy that the assembling of rotor also becomes, built-up time can be shortened, and the breaking of magnet in when assembling, damaged permanet magnet type rotary electric machine and manufacture method thereof can be reduced.
Above-mentioned and other, object of the present invention, feature, effect, clearer by the detailed explanation of following execution mode and the record meeting of accompanying drawing.
Accompanying drawing explanation
Fig. 1 means the general profile chart of structure of the permanet magnet type rotary electric machine of embodiments of the present invention 1.
Fig. 2 is the mobile key diagram of magnetic flux of the permanet magnet type rotary electric machine of embodiments of the present invention 1.
Fig. 3 is the mobile key diagram of magnetic flux of the permanet magnet type rotary electric machine of embodiments of the present invention 1.
Fig. 4 means the general profile chart of structure of the rotor of embodiments of the present invention 2.
Fig. 5 means the general profile chart of structure of the rotor of embodiments of the present invention 2.
Fig. 6 is the structure of rotor and the mobile key diagram of magnetic flux of embodiments of the present invention 3.
Fig. 7 means other the general profile chart of structure of rotor of embodiments of the present invention 3.
Fig. 8 is the key diagram of assembling sequence of the rotor of embodiments of the present invention 3.
Fig. 9 carries out the key diagram of the magnetized state in magnetized situation after main magnet and auxiliary magnet is fixing to rotor magnet.
Figure 10 is the key diagram of the magnetized state of the rotor magnet in manufacture method of the present invention.
Figure 11 means the general profile chart of structure of the rotor of embodiments of the present invention 4.
Embodiment
Below, with reference to the accompanying drawings of embodiments of the present invention.In addition, in each figure, same reference numerals represents identical or considerable part.
Fig. 1 means the general profile chart of structure of the permanet magnet type rotary electric machine of embodiments of the present invention 1, and Fig. 2, Fig. 3 are the mobile key diagrams of magnetic flux.
In Fig. 1, rotor 1 consists of rotor core 2, the main magnet 3 and the auxiliary magnet 4 that are arranged on the periphery of this rotor core 2.Arrow mark in magnet is the magnetized direction of magnet.
The direction of magnetization of main magnet 3 is towards radially, and the direction of magnetization of auxiliary magnet 4 is towards circumferentially.The alternating polarity ground reversion of main magnet 3.The polarity of auxiliary magnet 4 is, the main magnet side of the N utmost point is the N utmost point, and the main magnet side of the S utmost point is the S utmost point.Main magnet 3 is that sintered magnet forms by neodymium, and auxiliary magnet 4 consists of ferrite magnet.In addition, main magnet 3 and auxiliary magnet 4 are fixed compartment of terrain is set each other.
Utilize the magnetic force of magnet, magnetic flux flows according to rotor 1 → stator 5 → rotor 1.By flowing into the magnetic flux and the interaction of flowing through the coil current of stator coil 7 of this stator 5, produce rotating torques.Output torque is directly proportional to the magnetic flux and the long-pending of coil current that flow into stator 5.
Under coil current is constant condition, if use strong magnet, can increase magnetic flux, can seek to export torque and improve.On the other hand, under the constant condition of output torque, if use strong magnet, can reduce coil current, can reduce the loss by 7 resistance consumption of stator coil, can seek the raising of the efficiency of electric rotating machine.In addition,, under output torque, coil current are constant condition, by using strong magnet, can make magnet miniaturization, and can make electric rotating machine miniaturization.
From magnet magnetic flux out, all do not arrive stator, have the magnetic flux that flows to adjacent magnet from epitrochanterian magnet.(at the magnet with adjacent, approaching magnet end produces.) these magnetic fluxs are helpless to the output of electric rotating machine.
While inserting auxiliary magnet 4 between main magnet 3 and main magnet 3, owing to producing magnetic force hindering in its direction of returning to magnetic flux, so the magnetic flux of main magnet end does not return to rotor core 2, arrive stator 5, so can increase the magnetic flux that flows into stator 5, can effectively use the magnetic force of main magnet 3.That is, even if the amount that has the effect of further strong permanent magnet or reduce main magnet also can obtain the effect of equal output torque.
Effect, the effect of execution mode 1 then, are described.
Because as long as auxiliary magnet 4 has for making the magnetic flux flow of main magnet 3 to the auxiliary magnetic force of stator 5, so magnetic force that may not be equal with main magnet.Therefore in the present invention, auxiliary magnet 4 consists of the ferrite magnet a little less than comparing magnetic force with main magnet 3.
The neodymium of main magnet 3 is that sintered magnet has been used relict flux density for 1.2T, and coercive force is magnet more than 1600kA/m.The ferrite magnet of auxiliary magnet 4 has been used relict flux density for 0.4T, and coercive force is magnet more than 300kA/m.
In addition, between these main magnets 3 and auxiliary magnet 4, gap is set.
Fig. 2 means the mobile schematic diagram of the magnetic flux in the situation of only having main magnet 3, and Fig. 3 means the mobile schematic diagram of the magnetic flux in the situation of main magnet 3+ auxiliary magnet 4.
In the situation that only having main magnet 3, as shown in Figure 2, the magnetic flux representing with dotted line 10 flows into stator (useful flux), but the magnetic flux of the dotted line 11 producing from the end of main magnet 3 does not arrive stator and turns back to rotor (invalid magnetic flux).
In the situation that having main magnet 3 and auxiliary magnet 4, as shown in Figure 3, due to the magnetic flux representing with dotted line 12 that the magnetic force by auxiliary magnet 4 produces, the magnetic flux producing from magnet end also flows into stator.
In the gapped situation of tool between main magnet 3 and auxiliary magnet 4, the length of the direction of magnetization of the magnetic force of auxiliary magnet 4 (suitable with the magnet width of periphery of rotor) shortens, thereby magnetic force and magnet length proportionally die down.But if with respect to magnet width 5mm, gap is below 0.5mm, the reduction of magnetic force is below 10% left and right, just can obtain the sufficient auxiliaring effect being brought by auxiliary magnet.
Utilize following electric rotating machine to carry out the confirmation of effect.
Electric rotating machine is 12 grooves, 8 utmost points, and rotor diameter is Φ 40.The length of axial magnet, be that the length of stator is 35mm.
First, as only having in the situation of main magnet 3, main magnet is that semicolumn (か ま Pot こ) type and cross section are arc sector magnet.The height of the sheet portion that the height that the magnet width of take is 9mm, magnet is 2.6mm, magnet is 1.2mm, has obtained the torque of electric rotating machine.
Then, and used auxiliary magnet 4 in the situation that, the shape of main magnet 3 is semicircle column types, magnet width is 8.6mm, the height of magnet is 2.3mm, the height of the sheet portion of magnet is 1.2mm.The face contacting with rotor core 2 is plane, the face that side is is right angle with respect to bottom surface.
Relatively used the result of the output torque in the situation of rotor of these shapes as follows.
(1) main magnet (neodymium is sintered magnet) only:
Neodymium is sintered magnet use amount 1, output torque 1
(2) main magnet (neodymium is sintered magnet)+auxiliary magnet (ferrite magnet):
Neodymium is sintered magnet use amount 0.77, output torque 1
(3) use the main magnet identical with above-mentioned (2), without auxiliary magnet:
Neodymium is sintered magnet use amount 0.77, output torque 0.971
The neodymium that main magnet 3 is used is sintered magnet and auxiliary magnet 4 ferrite magnet used, the tolerance of for example have ± 0.1mm of the geomery of magnet.Magnet is fixed on rotor core 2 by the method such as bonding, but produces error to the fixing position of rotor core 2.Therefore, as past case, in order seamlessly to configure main magnet 3 and auxiliary magnet 4, need to improve magnet machining accuracy, and improve the fixing positional precision of magnet.Therefore, process and assemble the cost of required time longer.
With respect to this, in the structure of the execution mode 1 shown in Fig. 1, between main magnet 3 and auxiliary magnet 4, gap is set, the dimensional tolerance of magnet can be reduced, and the process time of magnet can be shortened.
Gap is 0.5mm.In addition, can reduce by magnet to rotor core the positional precision fixedly time, can shorten built-up time.
As mentioned above, the permanet magnet type rotary electric machine of embodiments of the present invention 1 be possess by unshakable in one's determination 6 and coiling 7 stators that form 5 and the magnet that forms a plurality of magnetic poles by so-called Haier Bake, be configured in the permanet magnet type rotary electric machine of rotor 1 of the outer peripheral face of rotor core 2, the magnetic pole of rotor is consisted of the main magnet 3 of diametrical magnetization and the auxiliary magnet 4 of circumferential magnetization, and between main magnet 3 and auxiliary magnet 4, gap is set.
In addition, main magnet 3 consists of rare-earth sintered magnet, and auxiliary magnet 4 consists of ferrite magnet.
According to the permanet magnet type rotary electric machine of the execution mode 1 of such formation, can not make the output of electric rotating machine reduce and reduce the use amount that neodymium is sintered magnet, can make the supply of electric rotating machine stable, and can reduce manufacturing cost.
In addition,, owing to can increasing the dimensional tolerance of used magnet, so can shorten the process time of magnet, the assembling of rotor also becomes easily, can shorten built-up time.
In addition, in above-mentioned execution mode 1, the groove number that has represented stator is 12, and the number of poles of rotor is the example of 8 utmost points, yet the present invention is not limited to this number of pole-pairs, even other number of pole-pairs also can obtain same effect certainly.
Fig. 4, Fig. 5 mean the general profile chart of structure of rotor of the permanet magnet type rotary electric machine of embodiments of the present invention 2.In Fig. 4, Reference numeral 15 is the nonmagnetic substances that are configured in the gap of main magnet 3 and auxiliary magnet 4.In addition, other formation is identical with execution mode 1, and description thereof is omitted.
In the situation that the rotor of assembly drawing 4 is fixed on main magnet 3 on rotor core 2 by bonding.Auxiliary magnet 4 the resin of non magnetic material 15 has been put into and main magnet 3 between after, by bonding and be fixed on rotor core 2.
The rotor of the execution mode 2 forming is like this owing to being filled with resin between main magnet 3 and auxiliary magnet 4, thus in the time of can preventing electric rotating machine assembling because of magnet the breaking of causing or damaged that contact with each other.In addition, can strengthen the bed knife to rotor core 2.
In addition, the structure of execution mode 2 also can realize by integrally moulded shaping main magnet 3 and auxiliary magnet 4 on rotor core 2.
That is, rotor core 2, main magnet 3, auxiliary magnet 4 are inserted in molding die and after location, by injection molding resin, solidify, can easily realize.
Fig. 5 is by the example of molded be shaped integratedly main magnet 3 and auxiliary magnet 4, after rotor core 2, main magnet 3, auxiliary magnet 4 are configured in molding die, by filling and the construction method of curing moulded resin 16 is made.
Permanent magnet generator according to this integrally moulded execution mode 2 being shaped, can make the bed knife of rotor core 2 and main magnet 3, auxiliary magnet 4 further improve.
Fig. 6, Fig. 7 represent the cross section structure of rotor of permanet magnet type rotary electric machine and the flowing of the magnetic flux of magnet generation of embodiments of the present invention 3.
The permanet magnet type rotary electric machine of this execution mode 3 also setting space between auxiliary magnet 4 and rotor core 2, is filled between main magnet 3 and auxiliary magnet 4 and between auxiliary magnet 4 and rotor core 2 as the resin 15 of nonmagnetic material layer.
The magnetic flux of auxiliary magnet 4 as represented in the dotted line with in scheming, the path flow in path and the rotor inner circumferential side of rotor outer circumferential side.The path of outer circumferential side plays a role in order to strengthen the magnetic flux of main magnet 3, but the path of inner circumferential side becomes loss.By nonmagnetic spacing being set in inner circumferential side, can increase the magnetic circuit resistance of inner circumferential side, reduce the magnetic flux of inner circumferential side and the magnetic flux that can make to flow to outer circumferential side increases.
Fig. 6 is the structure that the rotor core 2 of the position that is fixed of the auxiliary magnet 4 at rotor core 2 is provided with recess 17, and Fig. 7 is the example that does not form recess.
At the interval of auxiliary magnet 4 and rotor core 2, can obtain effect in than the little scope in the interval of auxiliary magnet 4 and stator core 6.In the electric rotating machine that be 12 at above-mentioned groove number, number of poles is 8, in the situation that the gap of auxiliary magnet 4 and rotor core 2 is made as to 0.5mm, output torque approximately improves 1%.
Then, assembling sequence and magnetizing method for the rotor of above-mentioned execution mode 3, describe with reference to Fig. 8～Figure 10.Fig. 8 means the figure of the assembling sequence of rotor.
First, main magnet 3 is fixed on rotor core 2.(with reference to Fig. 8 (a).) as described later, under this state, rotor is inserted in magnetization yoke, and main magnet 3 is magnetized.
Fix and undertaken by bonding grade.When inserting the complete auxiliary magnet 4 of magnetization, with repulsive force, the attraction action of main magnet 3, but resin 15 becomes fender, can prevent the breaking of magnet, damaged.
Here, about the magnetization of main magnet 3, with reference to the schematic diagram of Fig. 9, Figure 10, describe.
On rotor, fixed after main magnet 3 and auxiliary magnet 4, with magnetization yoke, carried out in magnetized situation, because the end of the magnet end at main magnet 3 and auxiliary magnet 4 cannot obtain sufficient magnetizing field intensity, so be difficult to magnetize completely.Fig. 9 is fixed on by main magnet 3 and auxiliary magnet 4 schematic diagram that has been carried out magnetized situation after rotor core 2 by magnetization yoke.In Fig. 9, Reference numeral 20 is magnetization yokes, and Reference numeral 21 is cores, and Reference numeral 22 is coils.In the coil 22 of magnetization yoke 20, the pulse current of mobile 10kA of moment left and right, produces the magnetic flux representing with dotted line.Because direction of orientation (identical with the magnetized direction) composition of the only magnet separately of this magnetic flux contributes to magnetization, so implementing hypographous region, contribute to magnetized magnetic field composition to diminish.Therefore, produce the necessity that flows through larger magnetizing current.In addition,, aspect volume production, produce the such problem of lifetime of magnetization yoke.
With respect to this, as shown in the magnetized schematic diagram of Figure 10, only fixedly after main magnet 3, the position configuration of the coil 22 of magnetization yoke 20 is carried out to the magnetization of main magnet 3 in position as shown in Figure 10, in addition auxiliary magnet 4 is used hollow coil etc. to magnetize with monomer, and main magnet, auxiliary magnet can both easily magnetize completely thus.
As mentioned above, 3 permanet magnet type rotary electric machine and manufacture method thereof according to the embodiment of the present invention, except the effect of execution mode 1, can also magnetize main magnet, auxiliary magnet completely, can seek the raising of the further output of electric rotating machine, the raising of efficiency.In addition, can magnetize with less electric current, there is the effect in the life-span that can extend magnetization yoke.
Figure 11 represents the cross section structure of rotor of the permanet magnet type rotary electric machine of embodiments of the present invention 4.
In this execution mode 4, the interval of the spacing of main magnet 3 and auxiliary magnet 4 is constituted as, and rotor outer circumferential side is narrow and rotor inner circumferential side is wide.Other formation is identical with execution mode 1, and description thereof is omitted.
The magnetic flux of auxiliary magnet, as shown in the dotted line in figure, flows in the path of rotor outer circumferential side and the path of rotor inner circumferential side.The path of outer circumferential side plays a role in order to strengthen the magnetic flux of main magnet, but the path of inner circumferential side becomes loss.According to this execution mode 4, the magnetic flux of inner circumferential side can increase the magnetic circuit resistance of inner circumferential side by nonmagnetic spacing is set, the magnetic flux of outer circumferential side plays a role in order to increase the magnetic flux of main magnet, so can expand the magnet width of outer circumferential side, the magnetic flux of main magnet is further increased.By making the gap of outer circumferential side, be 0.3mm, the gap of inner circumferential side is 0.7mm, can seek the raising of approximately 1% output torque.
In industry, utilize possibility
The present invention is preferably for permanet magnet type rotary electric machines such as permanet magnet type synchronous motors.
The explanation of Reference numeral
1 rotor, 2 rotor cores, 3 main magnets, 4 auxiliary magnets, 5 stators, 6 stator cores, 7 stator coils, 10,11,12 magnetic fluxs, 15 resins (nonmagnetic material layer), 16 moulded resins, 17 recesses, 20 magnetization yokes, 21 cores, 22 coils.
Claims (6)
1. a permanet magnet type rotary electric machine, possesses the rotor that the stator consisting of iron core and coiling and the magnet that forms a plurality of magnetic poles are configured in the outer peripheral face of rotor core, it is characterized in that,
The magnetic pole of above-mentioned rotor consists of the main magnet of diametrical magnetization and the auxiliary magnet of circumferential magnetization, and is provided with gap between above-mentioned main magnet and above-mentioned auxiliary magnet.
2. permanet magnet type rotary electric machine according to claim 1, is characterized in that,
In gap between above-mentioned main magnet and above-mentioned auxiliary magnet, be filled with resin.
3. permanet magnet type rotary electric machine according to claim 2, is characterized in that,
Between above-mentioned auxiliary magnet and above-mentioned rotor core, be provided with nonmagnetic material layer.
4. permanet magnet type rotary electric machine according to claim 2, is characterized in that,
Gap between above-mentioned main magnet and above-mentioned auxiliary magnet forms that rotor outer circumferential side is narrow and inner circumferential side is wide.
5. according to the permanet magnet type rotary electric machine described in any one in claim 1～4, it is characterized in that,
Above-mentioned main magnet consists of rare-earth sintered magnet, and above-mentioned auxiliary magnet consists of ferrite magnet.
6. a manufacture method for permanet magnet type rotary electric machine claimed in claim 1, is characterized in that,
Comprise following operation: on above-mentioned rotor core, main magnet is installed, and to after the magnetization of this main magnet, the auxiliary magnet having magnetized is installed to above-mentioned rotor core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/065680 WO2013008284A1 (en) | 2011-07-08 | 2011-07-08 | Permanent magnet type electric rotating machine and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103534900A true CN103534900A (en) | 2014-01-22 |
| CN103534900B CN103534900B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180070820.2A Expired - Fee Related CN103534900B (en) | 2011-07-08 | 2011-07-08 | Permanet magnet type rotary electric machine and manufacture method thereof |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9893571B2 (en) |
| JP (1) | JP5784724B2 (en) |
| CN (1) | CN103534900B (en) |
| DE (1) | DE112011105426T5 (en) |
| WO (1) | WO2013008284A1 (en) |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063625A (en) * | 1991-02-01 | 1992-08-19 | 包头新材料应用设计研究所 | The Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator |
| JP2001298887A (en) * | 2000-04-14 | 2001-10-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN1388623A (en) * | 2001-05-29 | 2003-01-01 | 株式会社日立制作所 | Electric power generator with permanent magnetic rator |
| JP2007014110A (en) * | 2005-06-30 | 2007-01-18 | Asmo Co Ltd | Rotary electric machine |
| JP2007019127A (en) * | 2005-07-06 | 2007-01-25 | Yaskawa Electric Corp | Periodic magnetic field generator and linear motor using the same |
| JP2010130818A (en) * | 2008-11-28 | 2010-06-10 | Daikin Ind Ltd | Method for manufacturing field element |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030094873A1 (en) * | 1999-08-27 | 2003-05-22 | Michael Kim | Permanent magnet array and magnet holder for flywheel motor/generator |
| JP2004350427A (en) | 2003-05-22 | 2004-12-09 | Denso Corp | Rotating electric machine and its rotor |
| JP2005045984A (en) | 2003-07-25 | 2005-02-17 | Yaskawa Electric Corp | Rotor for permanent magnet synchronous motor |
| JP2006246570A (en) | 2005-03-01 | 2006-09-14 | Canon Inc | Linear motor and exposure device using linear motor |
| JP5294762B2 (en) | 2008-09-01 | 2013-09-18 | 三菱電機株式会社 | Linear motor |
| JP2010130819A (en) * | 2008-11-28 | 2010-06-10 | Daikin Ind Ltd | Field element and method for manufacturing field element |
| JP5515478B2 (en) * | 2009-07-17 | 2014-06-11 | 株式会社安川電機 | Periodic magnetic field generator and linear motor and rotary motor using the same |
-
2011
- 2011-07-08 DE DE112011105426.2T patent/DE112011105426T5/en active Granted
- 2011-07-08 CN CN201180070820.2A patent/CN103534900B/en not_active Expired - Fee Related
- 2011-07-08 WO PCT/JP2011/065680 patent/WO2013008284A1/en active Application Filing
- 2011-07-08 JP JP2013523715A patent/JP5784724B2/en not_active Expired - Fee Related
- 2011-07-08 US US14/114,846 patent/US9893571B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063625A (en) * | 1991-02-01 | 1992-08-19 | 包头新材料应用设计研究所 | The Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator |
| JP2001298887A (en) * | 2000-04-14 | 2001-10-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN1388623A (en) * | 2001-05-29 | 2003-01-01 | 株式会社日立制作所 | Electric power generator with permanent magnetic rator |
| JP2007014110A (en) * | 2005-06-30 | 2007-01-18 | Asmo Co Ltd | Rotary electric machine |
| JP2007019127A (en) * | 2005-07-06 | 2007-01-25 | Yaskawa Electric Corp | Periodic magnetic field generator and linear motor using the same |
| JP2010130818A (en) * | 2008-11-28 | 2010-06-10 | Daikin Ind Ltd | Method for manufacturing field element |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013008284A1 (en) | 2015-02-23 |
| US20140084731A1 (en) | 2014-03-27 |
| CN103534900B (en) | 2016-01-20 |
| JP5784724B2 (en) | 2015-09-24 |
| US9893571B2 (en) | 2018-02-13 |
| DE112011105426T5 (en) | 2014-04-03 |
| WO2013008284A1 (en) | 2013-01-17 |
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